MSDN has grown a lot since it was first uploaded to net (21st of April 1999). Back then MSDN took every level that was sent and uploaded and reviewed it. Now MSDN has so much levels that right now there are some conditions which your map has to have to get here:
To get it reviewed at 'Hot Maps'(85-100 score):
It has to be a hot map: Your map has to be well designed to get reviewed
at MSDN - If it has a good design then it can be found from 'Hot Maps' section.
So it should score at least 85.
To get it reviewed at 'Maps'(0-84):
It has to have something special to offer: Theme, gameplay ideas, new ideas or
something special is enough to get your map reviewed at 'Maps' section (which
is for lower-quality maps).
To get it reviewed at 'DM Maps':
To get your map reviewed at 'DM Maps' section it has to be a Dukematch level
with good design. Excellent gameplay but really low-quality design isn't enough.
So if you think your map is good enough to get reviewed at 'Hot Maps', 'Maps' or 'DM Maps' section then send it by email to me - mikko.sandt@satabaana.net.
And if you doubt my reviewing/judgement skills then I can tell you that I sure have experience with all Duke stuff: I have played about 1500 Duke levels (and that's a fact), I have made more than 40 Duke levels, I have reviewed about 150 maps (for other sites than MSDN also), I have played more than 20 TCs, I have played Duke for five years, etc. So I do know what map is good and what is not. Still reviews are based 100% on my opinions.